Slow Cooker White Lasagna Soup is one of those comforting, hearty dishes that warms not just your belly but your spirit too. Creamy, filled with tender chicken and fresh vegetables, this soup carries all the classic flavors of lasagna, but with the ease of a slow cooker. The melding of rich chicken stock, aromatic herbs, and heavy cream creates a luxurious broth that envelops every noodle and piece of chicken, making each spoonful a delightful experience. It’s the perfect answer for those busy evenings when you crave something that feels special without spending hours in the kitchen!

I still remember the first time I made this soup. On a chilly evening, I was looking for a cozy dish to share with friends. The aroma that filled my kitchen as it simmered was enough to draw everyone in, and by the time we sat down to eat, I knew I had stumbled upon a new favorite. There’s something so satisfying about a slow cooker meal — it allows flavors to deepen and develop while you go about your day. As the cozy scent enveloped our home, we all couldn’t wait to dig into this comforting bowl of goodness. Trust me, you’ll want to add this to your regular rotation, and I can’t wait for you to try it!
Why You’ll Love This Recipe
- Simple & Quick: Just 25 minutes prep, then let your slow cooker do the magic.
- Irresistible Flavor: Creamy broth with tender chicken and bursts of freshness from spinach and sundried tomatoes.
- Eye-Catching Appeal: Layers of ingredients make this soup not only appetizing but visually stunning.
- Flexible Serving: Perfect for family dinners, casual gatherings, or meal prep for busy weekdays.
- Diet-Friendly Options: Easily adjustable for gluten-free with pasta alternatives!
Ingredients You’ll Need
- 1 white onion (diced): Adds a sweet and aromatic base to the soup. Substitute with yellow onion or shallots if needed.
- 4 cloves garlic (minced): Fresh garlic gives a robust flavor—fresh is always better than pre-minced.
- 2 tsp. Italian seasoning: A house blend of herbs that adds warmth and earthiness. You can adjust it with your favorites.
- 1 tsp. salt: Essential for enhancing flavors. You can reduce this if you’re watching sodium intake or using a low-sodium stock.
- 1/2 tsp. black pepper: Freshly cracked is best for a kick of heat.
- 1/4 tsp. crushed red pepper flakes (optional, for heat): Offers a nice touch of spice; feel free to omit if you prefer milder flavors.
- 6 cups chicken stock: A flavorful base—homemade is great, but a quality store-bought option will work well too.
- 1 lb. boneless skinless chicken breasts: The main protein and absorbs flavors beautifully. You can use thighs for a richer taste.
- 1/2 cup sundried tomatoes (chopped): Brings a tangy sweetness; oil-packed sundried tomatoes are especially flavorful.
- 1 cup heavy cream: Adds richness to the broth, turning it creamy. Half-and-half can be a lighter option, though it may alter the texture.
- 2 Tbsp. cornstarch: Thicken the soup—mix it with water to form a slurry before adding it.
- 4 cups fresh spinach: Fresh greens for a pop of color and nutrients; kale works as a substitute in a pinch.
- 8 oz. broken lasagna noodles (cooked separately and drained): The twist of the lasagna form; any flat pasta will do, just ensure it cooks to al dente before adding.
- Shredded parmesan cheese and fresh parsley for serving: A sprinkle of cheese and herbs makes it feel gourmet without the fuss!
How to Make Slow Cooker White Lasagna Soup
- Sauté Aromatics: In a pan, heat a small amount of olive oil over medium heat. Add the diced white onion and sauté for about 5 minutes until it’s translucent. Stir in the minced garlic and cook for another minute, until fragrant, then transfer this mixture to your slow cooker.
- Combine Ingredients: Add the Italian seasoning, salt, black pepper, and crushed red pepper flakes to the slow cooker, mixing well. Pour in the chicken stock and follow with the chicken breasts, ensuring they’re submerged.
- Add Sundried Tomatoes: Incorporate the chopped sundried tomatoes into the slow cooker. They will rehydrate and infuse the soup with their rich flavor.
- Cook: Cover the slow cooker and cook on low for 6 hours, or until the chicken is cooked through and tender and can easily shred with a fork.
- Shred the Chicken: Carefully remove the cooked chicken breasts and shred them using two forks. Return the shredded chicken back to the slow cooker.
- Enrich the Broth: Stir in the heavy cream and cornstarch slurry into the soup, mixing until well combined. This gives the soup its creamy texture.
- Add Spinach: Toss in the fresh spinach, stirring until it wilts, which usually takes about 2-3 minutes.
- Pasta Time: Just before serving, stir in the cooked lasagna noodles. The noodles will soak up some of the broth, making each serving hearty and filling.
- Serve: Ladle the soup into bowls and top with shredded parmesan cheese and freshly chopped parsley for a burst of color and flavor.
Storing & Reheating
This soup is perfect for leftovers! Allow it to cool and store in an airtight container in the refrigerator for up to 4 days. If you want to freeze it, transfer the cooled soup into freezer-safe containers, leaving some space for expansion, and it will last for about 3 months. For reheating, simply thaw overnight in the fridge, then warm on the stove over medium heat until heated through, about 10-15 minutes. Keep in mind the texture of the spinach may change, but a sprinkle of fresh parsley when serving can revitalize its appearance!
Chef’s Helpful Tips
- Check that your chicken is cooked through to 165°F to ensure it’s safe to eat.
- For a thicker soup, add a bit more cornstarch mixed with cold water to the broth if it seems too thin.
- Don’t skip the sautéing step for the onion and garlic; it enhances the flavors significantly.
- Experiment with additional veggies like mushrooms or zucchini for added nutrition and flavor.
- Make a big batch for meal prep; just portion it out, and it’s ready to go for lunches!
- For a lighter version, consider using coconut milk in place of heavy cream for a different twist.
This hearty Slow Cooker White Lasagna Soup not only delivers incredible flavor but also embodies the warmth and nurturing we often seek in our meals. It’s easy enough for an everyday supper yet impressive enough for entertaining. Feel free to play with the ingredients, adding your favorites or making substitutions based on what you have on hand. The beauty of this dish lies in its versatility and comforting nature. Grab your slow cooker, gather your ingredients, and get ready to enjoy a delicious meal that’s sure to become a family favorite!

Recipe FAQs
Can I use different types of noodles?
Yes! While lasagna noodles work beautifully, you can use any type of pasta. Just be mindful of the cooking time since some types may require less time than others.
Can I make this soup ahead of time?
Absolutely! You can prepare the soup up to the point of adding the heavy cream and pasta. Store it, then finish cooking and serve just before eating. This helps maintain the texture of the noodles.
Is it possible to make this soup vegetarian?
Certainly! You can replace the chicken with chickpeas or lentils and use vegetable broth instead of chicken stock for a hearty vegetarian option.
How can I make this soup spicy?
If you’re looking for an extra kick, increase the amount of crushed red pepper flakes or add diced jalapeños. A dash of hot sauce when serving will also add heat without overpowering the dish.
Print
Slow Cooker White Lasagna Soup
This Slow Cooker White Lasagna Soup combines tender chicken, creamy broth, and fresh spinach, offering a hearty meal that’s easy to prepare and loaded with flavor.
- Total Time: 6 hours 25 minutes
- Yield: 6 servings 1x
Ingredients
- 1 white onion (diced)
- 4 cloves garlic (minced)
- 2 tsp. Italian seasoning
- 1 tsp. salt
- 1/2 tsp. black pepper
- 1/4 tsp. crushed red pepper flakes (optional, for heat)
- 6 cups chicken stock
- 1 lb. boneless skinless chicken breasts
- 1/2 cup sundried tomatoes (chopped)
- 1 cup heavy cream
- 2 Tbsp. cornstarch
- 4 cups fresh spinach
- 8 oz. broken lasagna noodles (cooked separately and drained)
- shredded parmesan cheese and fresh parsley for serving
Instructions
- In a slow cooker, combine the diced onion, minced garlic, Italian seasoning, salt, black pepper, and crushed red pepper flakes (if using).
- Pour in the chicken stock and stir everything together.
- Add the chicken breasts to the slow cooker.
- Sprinkle the chopped sundried tomatoes over the top.
- Cover and cook on low for 6-8 hours or on high for 3-4 hours until the chicken is cooked through and tender.
- Remove the chicken breasts from the slow cooker and shred them using two forks. Return the shredded chicken to the slow cooker.
- In a separate bowl, whisk together the heavy cream and cornstarch until smooth. Pour this mixture into the slow cooker and stir well to combine.
- Cover and continue cooking on high for an additional 30 minutes.
- Meanwhile, cook the lasagna noodles according to package instructions. Drain and set aside.
- Stir in the fresh spinach until wilted.
- Just before serving, add the cooked lasagna noodles to the slow cooker and stir gently to incorporate.
- Serve in bowls topped with shredded Parmesan cheese and fresh parsley for garnish. Enjoy!
Notes
Feel free to add more vegetables like zucchini or bell peppers to enhance the flavor.
To make it creamier, add more heavy cream or cheese before serving.
Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Prep Time: 25 minutes
- Cook Time: 6 hours
- Category: Soups
- Method: Slow Cooker
- Cuisine: Italian
Nutrition
- Serving Size: 1 bowl
- Calories: 410
- Sugar: 2g
- Sodium: 800mg
- Fat: 24g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 22g
- Cholesterol: 80mg



